Please help me - - - Thanks by the way!!

Mathematics

2 answers:

vagabundo [1.1K]3 years ago

4 0

Answer:

m=3

Step-by-step explanation:

subtract the e from both sides so you now have 15=5m divide each by 5 and you get 3=m

mezya [45]3 years ago

3 0

Answer:

m = 3

Step-by-step explanation:

-5m + 18 = 3

-5m = 3 - 18

-5m / -15 = 3

Answer: m = 3

Hope this helped

Brainliest is aprreciated.

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Please!! I have to do this by tonight!!

Aneli [31]

Answer:

Prob.3

Denote r: radius of circle O

Formula for calculating AOB sector:

Area = pi*r^2*angle/360

Area = pi*r^2*45/360 = 18 pi

=> r^2 = 18*360/45 = 144

=> r = 12

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(answer : r = 6)

4 0

3 years ago

Two planes A and B start from the same place and move in different directions making an angle of 50° between them the speed of p

Alika [10]

Answer:

The distance between them is 230.65 miles

Step-by-step explanation:

Here we use the Cosine formula

$a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour$